1.natural selection 物競(jìng)天擇;自然淘汰
例句:Darwin thinks that natural selection is the chief factor in the development of species.
達(dá)爾文認(rèn)為自然淘汰是物種發(fā)展中的主要因素。
2.get out of 逃避;避免
例句:It's amazing what people will do to get out of paying taxes.
人們?yōu)樘佣惗龀龅姆N種事情令人吃驚。
3.at a time 一次;每次
例句:Can I borrow two books at a time?
我可以一次借兩本書嗎?
4.make up for 彌補(bǔ)
例句:Her beauty can't make up for her stupidity.
她的美麗不能彌補(bǔ)她的愚蠢。